<template>
  <div class="keyboard" v-show="showKeyboard" v-clickoutside="closeModal">
    <p v-for="keys in keyList">
      <template v-for="key in keys">
        <i v-if="key === 'top'" @click.stop="clickKey" @touchend.stop="clickKey"
          class="iconfont icon-zhiding tab-top"></i>
        <i v-else-if="key === '123'" @click.stop="clickKey" @touchend.stop="clickKey" class="tab-num">123</i>
        <i v-else-if="key === 'del'" @click.stop="clickKey" @touchend.stop="clickKey"
          class="iconfont icon-delete key-delete"></i>
        <i v-else-if="key === 'blank'" @click.stop="clickKey" @touchend.stop="clickKey"
          class="iconfont icon-konggejian-jianpanyong tab-blank"></i>
        <i v-else-if="key === 'symbol'" @click.stop="clickKey" @touchend.stop="clickKey" class="tab-symbol">符</i>
        <i v-else-if="key === 'point'" @click.stop="clickKey" @touchend.stop="clickKey" class="tab-point">·</i>
        <i v-else-if="key === 'enter'" @click.stop="clickKey" @touchend.stop="clickKey"
          class="iconfont icon-huiche tab-enter"></i>
        <i v-else @click.stop="clickKey" @touchend.stop="clickKey">{{key}}</i>
      </template>
    </p>
  </div>
</template>

<script>
  import clickoutside from 'element-ui/src/utils/clickoutside'

  export default {
    directives: { clickoutside },
    data () {
      return {
        keyList: [],
        status: 0,//0 小写 1 大写 2 数字 3 符号
        lowercase: [
          ['q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p'],
          ['a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l'],
          ['top', 'z', 'x', 'c', 'v', 'b', 'n', 'm', 'del'],
          ['123', 'point', 'blank', 'symbol', 'enter']
        ],
        uppercase: [
          ['Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P'],
          ['A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L'],
          ['top', 'Z', 'X', 'C', 'V', 'B', 'N', 'M', 'del'],
          ['123', 'point', 'blank', 'symbol', 'enter']
        ],
        equip: !!navigator.userAgent.toLocaleLowerCase().match(/ipad|mobile/i)//是否是移动设备
      }
    },
    props: {
      option: {
        type: Object
      }
    },
    computed: {
      showKeyboard () {
        return this.option.show
      }
    },

    mounted () {
      this.keyList = this.lowercase
    },

    methods: {
      tabHandle ({ value = '' }) {
        console.log(value, value.indexOf('tab-num'))
        if (value.indexOf('tab-num') > -1) {
          this.status = 2
          //数字键盘数据
        } else if (value.indexOf('key-delete') > -1) {
          this.emitValue('delete')
        } else if (value.indexOf('tab-blank') > -1) {
          this.emitValue(' ')
        } else if (value.indexOf('tab-enter') > -1) {
          this.emitValue('\n')
        } else if (value.indexOf('tab-point') > -1) {
          this.emitValue('.')
        } else if (value.indexOf('tab-symbol') > -1) {
          this.status = 3
        } else if (value.indexOf('tab-top') > -1) {
          if (this.status === 0) {
            this.status = 1
            this.keyList = this.uppercase
          } else {
            this.status = 0
            this.keyList = this.lowercase
          }
        } else {

        }
      },

      clickKey (event) {
        if (event.type === 'click' && this.equip) return
        let value = event.srcElement.innerText
        value && value !== '符' && value !== '·' && value !== '123' ? this.emitValue(value) : this.tabHandle(event.srcElement.classList)
      },

      emitValue (key) {
        this.$emit('keyVal', key)
      },

      closeModal (e) {

        // if (e.target !== this.option.sourceDom) {
        //   // this.showKeyboard = false

        // }
        this.$emit('close', false)
      }
    }
  }
</script>
<style scoped lang="less">
  .keyboard {
    width: 100%;
    margin: 0 auto;
    font-size: 18px;
    border-radius: 2px;
    padding-top: 0.5em;
    background-color: #e5e6e8;
    user-select: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 999;
    pointer-events: auto;

    p {
      width: 95%;
      margin: 0 auto;
      height: 45px;
      margin-bottom: 0.5em;
      display: flex;
      display: -webkit-box;
      flex-direction: row;
      flex-wrap: nowrap;
      justify-content: center;

      i {
        display: block;
        margin: 0 1%;
        height: 45px;
        line-height: 45px;
        font-style: normal;
        font-size: 24px;
        border-radius: 3px;
        width: 44px;
        background-color: #fff;
        text-align: center;
        flex-grow: 1;
        flex-shrink: 1;
        flex-basis: 0;
        -webkit-box-flex: 1;

        &:active {
          background-color: darken(#ccc, 10%);
        }
      }

      .tab-top {
        width: 50px;
        margin: 0 1%;
        background: #cccdd0;
        color: #fff;
        font-size: 24px;
      }

      .key-delete {
        width: 50px;
        margin: 0 1%;
        color: #827f7f;
        background: #d7d7d8;
      }

      .tab-num {
        font-size: 18px;
        background: #dedede;
        color: #5a5959;
      }

      .tab-point {
        width: 20px;
      }

      .tab-blank {
        width: 80px;
        font-size: 12px;
        padding: 0 15px;
        color: #5a5959;
        line-height: 60px;
      }

      .tab-symbol {
        width: 20px;
        font-size: 18px;
      }

      .tab-enter {
        font-size: 30px;
        line-height: 54px;
      }

      &:nth-child(2) {
        width: 88%;
      }
    }
  }
</style>